Planograph co



O. POTTER.

CABLE HAULING ENGINE.

APPLICATION FILED JAN.22, 191'2.

Rei ssued M51. 25, 19-13.

3 SHEETS-SHEET l.

OrZz'n P02???" '35 z r Z ATTORNEY WITNESSES:

INVENTOR \JOLUMIIA PLANOGRA PH C0,, WASHINGTON, n. c,

' 0. POTTER.

CABLE HAULING ENGINE.

APPLICATION FILED JAN.22,1912.

Reissued Mar. 25 1913. 1 3, 546.

3 SHEETSSHEET 2.

A TTORIVEY \JDLUMBIA Duncan/um c0. WASHXNGTON, 1:.c.

0. POTTER.

I CABLE HAULING ENGINE. APPLICATION FILED'JAN.22, 1912.-

Reissued Mar. 25, 1913. I 13,546.

3 SHEETS-SHEET 3.

WITNESSES: INVENTOR W Uri/n H277 3 Br y. (Z M. M

,4 TTORNEY COLUMBIA PLANOGIAPM co.. WASHINGTON. u. t

UNITED STATES PATENT OFFICE.

ORLIN POTTER, OF PORTLAND, OREGON.

CABLE-HAULING ENGINE.

Specification of Reissued Letters Patent. Reissued Mg u Original No.955,283, dated April 19, 1910, Serial No. 451,890. Application forreissue filed Serial No. 672,788.

January 22,

To all whom it may concern Be it known that I, ORLIN POTTER, a citizenof the United States, residing at Portland, in the county of Multnomahand State ofvOregon, have invented new and useful Improvements inCable-Hauling Engines, of

which the following is a specification.

This invention relates to that class of engines commonly called donkeysand used in logging camps, mines, etc., for hauling a cable to and froand thereby moving cars or other loads; and my invention has for itsobject to combine with engines of the type referred to, simple meanswhereby the hauling of the load is placed under more eflicient controlthan heretofore, so as to render the hauling operation as nearlyabsolutely safe as possible.

I attain my object by providing the cables of the engine drum with agrooved-face periphery, and combining therewith auxiliary drums, alsogrooved-face, and cooperating devices whereby the cable is preventedfrom slipping, and the hauling operation ismade both safe andconvenient, all as hereinafter more fully explained.

In the drawings, Figure 1 showsa partial side elevation of a donkeyengine embodying my invention. Fig. 2 is a partial plan or a top View,agreeing with the preceding figure; Fig. 3 is a corresponding right-endview of my engine; Fig. 4 is a diagrammatic illustration of my inventionas applied in practice for the hauling of a car over a pole-road; Fig. 4is a pictorial view of a detail of the embodiment of my inventionillustrated in Fig. 4; Fig. 5 is a diagrammatic illustration showing myengine as mounted upon a platform car, and the hauling cable arranged torun the car back and forth between two points; Fig. 6 is a sectionaldetail of the steam tightenerdevice, combined with my engine and adaptedto be thrown into service as the occasion presents itself; Fig. 7 is adiagrammatic illustration showing the cable wound around thegrooved-face auxiliary drum of an engine, installed as shown for examplein Fig. 4; and Fig. 8 is a diagrammatic illustration showing the cablewind as arranged in my engine when placed on a fiat car, and to beoperated as illustrated in Fig. 5.

The characters designate the parts referred to.

I deem it convenient to build all my engines after the same type orpattern illustrated in Figs. 1, 2 and 3, whether the same is to be usedin practice, as illustrated in the diagrammatic view Fig. 4, or as shownin Fig. 5. The supporting frame a may be made of any suitable material.On it are mounted cylinders 6, in which operate pistons a, thecrossheads of which slide in guideways d, as usual. Some of the partsreferred to have been omitted from Fig. 2 for the sake of brevity andclearness; and some of the well known devices of the engine are omittedin all views. At one end of the frame are mounted pillow blocks 6, onwhich is journaled a shaft f, on which is mounted a driven drum 9, theperipheral face of which is provided with a series of grooves g, whichis shown in Fig. 2, comprise seven in number. On the far side of thedrum g, as shown in Fig. 2, is mounted a gear wheel h, meshing with apinion z', fastened on a shaft j, journaled in bearings 70. The gearwheel I; is bolted to the drum 9, and both are rigid on their commonshaft f. The space intermediate the grooved periphery of the drum 9 andthe gear-wheel 72. is to apply a strap-brake (not shown) of the commontype. The connecting rods of the pistons are coupled to the wrist pinsof the crank disks Z, as usual. In front of the drum 9 there isjournaled on the frame a an auxiliary drum m, also provided on itsperiphery with a series of grooves, corresponding in arrangement withthe grooves of the drum 9.

As is shown in Fig. 3, the shaft m of the auxiliary drum mis alined atan oblique angle from the horizontal, which alinement, as apparent, isrequired to properly lead the cable-end between the main and theauxiliary drums. In front 'of the auxiliary drum mis provided afair-leader 'n. alined with the lower face of the main or driven drum 9and there is further provided a second fair-leader 0, located above thetop of the drum 9, as convenient to properly lead the return end of thehauling cable which is led toward the upper end of the drum g. Thefair-leaders n, 0 are of usual construction. The upper fair-leader 0 isnot shown in Fig. 2. To the rearward of the main drum 9 is provided agrooved-face pulley p, the shaft 29 of which'is also alined at anoblique angle, for the same purpose as described concerning the shaft mof the auxiliary drum m. The periphery of the grooved-face pulley 39 isprovided with two grooves. The purpose of the grooved-face pulley p isto enable one to so arrange the hauling cable that one end thereof willrun rearward from the main drum g, and pull from the lower face of saidmain drum g. Rearward of the grooved-face pulley 19, I provide afair-leader 9. To prevent the slipping of the cable wound around thedrums from any cause, I have provided a tightener mounted on anextension of the frame a, and braced by rods S as shown in Fig. 1. Theconstruction and operation of said tightener R are readily seen byhaving reference to the enlarged sectional detail thereof, shown in Fig.6.

r and r represent two cylinders in which are pistons W, the outer endsof the rods 0" of which pistons are connected to a yokelike bearing 15,in ,which is jo'nrnaled' a grooved-face drum u. The grooves of thelatter correspond with those of the auxiliary drum. Both cylinders ofthe tightener R are connected with the boiler of the engine, and theirrespective steam pipes are provided with suitable valves 1), so as toenable the control of the admission of steam into either cylinder. Thetightener is so mounted as to position the grooves in the drum to incorrespondence with those of the drums; that is to say, so that all thecable strands lying in the grooves of the auxiliary drum m will beprovided with corresponding grooves in the drum of the tightener R.Since, obviously, the strain on the hauling cable will always come onone or the other end of the grooved-face drum, the circumstances beingcontrolled by the direction in which the engine is operating, it is alsonecessary to so arrange the tightener as to enable the same to beapplied on that particular section or endof the hauling cable which forthe time being is receiving the greatest strain. To this end, I have socontrived my tightener that either one of the pistons r may be movedforward and thus permit either end of the tightener 1 drum to be broughtto bear upon a particular end strand of the cable wind. The air enteringon the under side of the pistons r escapes through ducts r Each of thepipes conducting the steam to the posts at the upper ends of thecylinders r, r is provided with a valve '0'. The valve 2) is arranged toenable its adjustment to admit steam into the cylinders 1", r and alsoto permit the admitted steam to escape at 1;, into the air, when thetightener is to be released. The pistons r are moved back to theirnormal position, by the reflex of the cable-strands against which thetightener has been thrown.

The arrangement of the winding cable around the drums of course dependsupon the mode in which my engine is to be used. Supposing the use of myengine to be as diagrammatically illustrated in Fig. 4, the cable wouldbe led first around the under side of the main drum g, thence around andover the latter and over the top of the auxiliary drum m, thence aroundthe under side of the latter and back around the main drum 9 a number oftimes as designated by the numbers 1 to 7; and finally the cable end 7would be led over the fair-leader toward the object with which thatcable end is to be connected. The first described arrangement of thecable is illustrated in Fig. 7. If, however, my engine is to be used in.practice as illustrated diagrammatically in Fig. 5, then the winding ofthe cable must be arrangedas illustrated in Fig. 8; that is to say, thecable-end 1 is passed around the under side of the main drum 9, thenceup and around the same, over the top and around the auxiliary drum m;thence around the two drums on lines 2 3 4 thence on line 55 and acrossthe under side of the main drum 9, to the grooved-face pulley 9, thenceacross the under face of and around the last mentioned pulley, back g;thence around the drum g, and pulley 29, on line 6"; and thence aroundthe drum 9 and rearward across the under face of the main drum and thepulley on line 7 to the point where attached. The purpose ofthe cablearrangement illustrated on Fig. 8 is to bring both ends of the tablein'position to start to wind on and off the under face of the main drumIn the diagrammatic view, Fig. 4, 12 represents my engine, 13, 13 thetwo ends of the hauling cable; 14 and 15 are guide pulley blocks; 16 isa pole track, and 17 is a car to which the ends of the cable areattached; 8 is a cable provided with a pulley 9 over which the cable end13 runs. The far end of the cable 8 runs over a pulley 10 secured to apost 11, and from said end is' suspended a weight w, by which arrange online 5 to the upper face of the main drum ment the cable-end 13 is kepttaut. The last mentioned features are illustrated in Fig. 4".

The diagrammatic view Fig. 5 represents my engine 20, as mounted on thefiat car 21, and the opposite ends of the cable 22 and 22* are fastenedto posts 23 and 24; the latter representing distant objective pointsbetween which the car 21, is caused to travel by operating my engine 20,and the cable ends being arranged as diagrammatically illustrated inFig. 8. The outlines 18 and 19 represent the boiler and steam pipeconnection therefrom to the valve o,

The parts not specifically described are understood to be of commonconstruction and arrangement.

My invention is especially suitable for hauling on a steep grade.

I claim 1. The combination in a hauling engine of a grooved-face main ordriven drum, a corresponding grooved-face auxiliary drum j ournaled infront of one face of said driven drum, fair-leaders arranged relativelyto the front face of said driven drum and said auxiliary drum, atightener operated by the driving motive-force and consisting of arockable bearing, a grooved drum journaled therein and positionedrelatively to the cable-strands running between the driven-drum and itsauxiliary drum, and connections whereby the motive force may be appliedto cause either end of said tightener drum to bear upon said cablestrands.

2. The combination in a hauling engine of a grooved-face main or drivendrum, a corresponding grooved-face auxiliary drum journaled in front ofone face of said driven drum, fair-leaders arranged relatively to thefront face of said driven drum and said auxiliary drum, a grooved-facepulley journaled in front of the rear or opposite face of said drivendrum, a fair-leader arranged relatively to said grooved-face pulley, atightener operated by the driving motive force and consisting ofrockable bearings, a grooved drum journaled therein and positionedrelatively to the cable-strands running between the driven-drum and itsauxiliary drum, and connections whereby the motiveforce may be appliedto cause either end of said tightener drum to bear upon said cablestrands.

3. The combination in a hauling engine of a grooved-face main or drivendrum a corresponding grooved-face auxiliary drum journaled on a relativeoblique axis in front of one face of said driven drum, fair-leadersarranged relatively to the front face of said driven-drum and saidauxiliary drum, a grooved-face pulley journaled on a relative obliqueaxis in front of the rear or opposite face of said driven drum, afair-leader arranged relatively to said grooved-face pulley, a tighteneroperated by the driven motive-force, consisting of a rockable bearing, agrooved-face drum journaled therein and positioned relatively to thecablestrands running between the drivendrum and its auxiliary drum, andconnections whereby the motive-force may be applied to cause either endof said tightener drum to bear upon said cable strands.

1. In a hauling engine, a grooved-face main or driven drum, agrooved-face auxiliary drum jo-urnaled in front of one face of saiddriven drum, a grooved-face pulley journaled in front of the oppositeface of said driven drum, said auxiliary drum and said pulley beingidlers, a cable arranged to pass under the auxiliary drum to the underface of the driven drum, thence having several laps around the drivenand auxiliary drums, thence passing from the under face of auxiliarydrum to the grooved-face pillley, thence having several laps around saidpulley and said driven drum, and finally passing from the under side ofthe driven drum.

5. In a hauling engine, a grooved-face main or driven drum, agrooved-face auxiliary drum journaled in front of one face of saiddriven drum, a grooved-face pulley journaled in front of the oppositeface of said driven drum, said auxiliary drum and said pulley beingidlers, a cable arranged to lead to the driven drum, thence havingseveral laps around the driven and auxiliary drums, thence passing fromthe auxiliary drum to the pulley, thence having several laps around saidpulley and said driven drum, and finally passing from the driven drum.

6. In a hauling engine, the combination with a driven drum, an auxiliarydrum, and a pulley, said auxiliary drum and pulley being idlers, of acable leading to the driven drum, thence having several laps about thedriven and auxiliary drums, thence having several laps about the drivendrum and the pulley, and passing from the driven drum.

7 In a hauling engine, a main or driven drum, an auxiliary drumjournaled in front of one face of said driven drum, a pulley journaledin front of the opposite face of said drive-n drum, said auxiliary drumand said pulley being idlers, and a cable having several contiguous lapsabout said driven drum and said auxiliary drum, and thence havingseveral contiguous laps about said' driven drum and said pulley.

8. In a hauling engine, a grooved-face main or driven drum, acorresponding grooved-face auxiliary drum journaled on a relativeinclined axis in front of one face of said driven drum, a grooved-facepulley journaled on a relative inclined axis in front of the oppositeface of said driven drum, said auxiliary drum and said pulley beingidlers, and a cable having several laps about said driven drum and saidauxiliary drum, and thence having several laps about said driven drumand said pulley.

9. In a hauling engine, a driven drum, an auxiliary drum and a pulley, acable leading to the driven drurn and thence having 10 one or more lapsabout the driven drum and auxiliary drum, thence having one or more lapsabout the driven drum and the pulley, passing from the driven drum.

ORLIN POTTER. Witnesses:

HORACE BARNES, E. PETERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

